Display Device Synchronization Lines Across Panel Border
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Solution Overview
Problem
Current liquid crystal display devices face challenges in accommodating synchronization lines due to insufficient space, which hinders the synchronization of semiconductor chips and affects the device's performance and design.
Innovation Solution
The configuration includes synchronization lines that extend across the border between covered and uncovered portions of the liquid crystal panel, allowing for efficient arrangement and reducing the area required for these lines, thereby enabling effective synchronization of signal sources while minimizing space constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional liquid crystal display device configuration is used with a single flexible printed circuit board, then the wiring configuration is simplified and the area required for the flexible printed circuit board is reduced, but sufficient space cannot be provided for synchronization lines
Solution Approach 1:
The invention divides the flexible printed circuit board into two separate flexible printed circuit boards. This segmentation allows each board to be optimized for specific functions: one board handles power supply lines while the other board accommodates synchronization lines. By separating these functions, the patent successfully provides sufficient space for synchronization lines without increasing overall device complexity, as each board can be independently designed and routed.
2Adaptability or versatility
If synchronization lines are added to meet current demands for liquid crystal display devices, then synchronization functionality is achieved, but the already limited space becomes insufficient
Solution Approach 1:
The patent segments the circuit board functions by using two separate flexible printed circuit boards instead of one. This allows synchronization lines to be accommodated on one board while power supply lines are handled by the other board, thereby achieving synchronization functionality without compromising available space.
Solution Approach 2:
The invention utilizes the dimensional space by routing synchronization lines and power supply lines through different spatial paths and orientations. The two flexible printed circuit boards are positioned at different locations and angles, effectively using three-dimensional space to accommodate both synchronization and power supply requirements without increasing the two-dimensional footprint.
3Ease of manufacture
If the flexible printed circuit board uses a single-sided wiring configuration, then manufacturing is simplified, but no additional space is available for synchronization lines
Solution Approach 1:
The patent maintains the ease of manufacture by using single-sided wiring configuration on each flexible printed circuit board. However, it segments the overall system into two boards, allowing synchronization lines to be added on one board without requiring complex multi-layer or double-sided wiring on a single board. This segmentation preserves manufacturing simplicity while providing the necessary space for synchronization functionality.
Data Source
AI summary
A display device includes a first member, a second member, image signal lines, signal sources, synchronization line terminals, and synchronization lines. The first member includes a display area. The second member includes a plate surface greater than the plate surface of the first member and a display area. The second member includes a covered portion covered with the first member and an uncovered portion not covered with the first member. The image signal lines are disposed in the covered portion. The signal sources are mounted to signal source mounting areas of the uncovered portion. The synchronization line terminals are disposed in the signal source mounting areas and coupled to the signal sources. The synchronization lines are disposed in the covered portion and the uncovered portion and coupled to the synchronization line terminals. Some of the synchronization lines cross a border between the covered portion and the uncovered portion.